When the house is renovated and handed over, people usually replace the lock core of the security door for safety reasons. The security door is the fortress and guarantee of our home safety. The lock core adopts a number of anti-theft technologies, a variety of special-shaped anti-pull-out marbles, and the unique structure design of marbles and blades has high safety performance against technical opening. Then, how much does it cost to change the lock core for a security door? What are the steps to replace the lock core of the security door? Next, this article will briefly introduce it.
[How much does it cost to change the lock core] What are the steps for changing the lock core for security doors?
How much does it cost to replace the lock core for security doors?
How much is it to change the lock core? We have to make a concrete analysis. The price of lock core will be different according to its quality and brand. It’s cheaper to replace the D-class security door lock core for general household use, generally about 90 ~ 120 meters away, especially those in 200 yuan or above. Be careful to select a regular lock changing company that has a record in the Public Security Bureau, so as not to leave a security risk and bring unnecessary trouble to your life. The head of household in Laiwu area recommended Laiwu Wanbao Unlocking and Car Key Company. The following is a brief introduction of how much it costs to change the lock core:
1. Class A lock core
Class A lock core is a common lock core, which is used in common security doors in the market. Among many lock core levels, the anti-theft coefficient of A level is the worst, which is not conducive to anti-theft. The price is relatively cheap, which is about 100 yuan.
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2. Class B lock core
The anti-theft coefficient of class B lock core is a little higher than that of class A, and its reliability is more worthy of people’s trust. The price of this B-class lock core is relatively moderate, after all, its anti-theft coefficient is not the highest. Its price is more expensive than 100-200, and there are higher ones.
3. Super Class B lock core
The so-called super B-class is of course more reliable than B-class. However, most of these levels are independently created and developed by enterprises, and there is not much difference between them and Grade B in terms of anti-theft level. The better price is more than 300 RMB, and the general price is about 150 RMB.
4. Super C-class blade lock core
Its anti-theft level is the highest and most reliable, and its production technology is also the highest. The focus of this level of lock core is not easy to be found by thieves, and it takes at least 270 minutes to open it. This kind of lock core is also very expensive, generally more than 300, and the good quality will be more than 800.
What are the steps to replace the lock core of the security door?
1. After selecting the lock cylinder, unscrew the two screws at the top and bottom of the hand panel. These two screws are mainly used to fix the panel. It can be completed as long as a cross screwdriver is ready, and it is very simple.
2. After the screws are screwed, put the screws away, and unscrew the lock cylinder and put the screws on both sides of the sleeve. However, be careful not to screw these two screws too tightly during installation, so as to avoid the security door handle being too tight to open. Remove the handle first, and then remove the lock cap.
3. Put the lock cylinder into the sleeve and remove it, and put it together with the screw. Remember the steps during disassembly, and the installation is the same. Everything removed should be put away in a unified way, so don’t lose it.
4. Unscrew the screw that fixes the lock core, and remove it to lock core. If the lock core cannot be pulled out by hand after removing the screw, knock it off with the left or right lock head of a hammer and try again.
5. Install the lock core anti-theft shell according to the method in step 3, and then install the handle. Before installing the handle, insert the safety bolt now, and then install the handle on it.
6. Install the inner and outer handles of He Long, and it is best for someone to help hold the outer handle together, so that they can meet each other symmetrically, and then proceed to the next step.
7, adjust the inside and outside handle, must be well coordinated, screw holes should be aimed at the nut over there, or use a flashlight to illuminate before turning the screw.
8. Insert the screw vertically. If the nut inside is not aligned when inserting the screw, please shake the screw with your fingers. Generally, friends who have rotated the screw can understand whether the screw is aligned.
9. Fix the panel and tighten the screws. Pay attention to the fact that the screws can’t be too tight. When the handle is folded, it can’t be rotated flexibly.
10, the last is to try the effect, be sure to try again with the door open, so as not to be locked, the door has not been repaired and you have to start all over again. You can twist the insurance by inserting the key and rotating it 360 degrees. After everything is normal, you can call it a day.